AH3767Q-P-B Equivalent & Substitute Parts

Part Overview

The AH3767Q-P-B is a magnetic switch latch sensor manufactured by Diodes Incorporated, utilizing Hall Effect technology for digital switching applications. This component operates as an open drain output device with temperature compensation across automotive-grade operating conditions. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this sensor.

Substiute Parts

AH3767Q-P-B

Diodes IncorporatedIn Stock: 1500AH3767Q-P-B Datasheet

Current PartRFQ

AH3727Q-P-B

Diodes IncorporatedIn Stock: 809AH3727Q-P-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AH3767Q-P-B is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Manufacturer: Diodes Incorporated (same manufacturer ecosystem)
• Technology: Hall Effect digital switching
• Mounting Type: Through Hole
• Package / Case: 3-SIP Module (physical and electrical pin compatibility)
• Operating Temperature Range: -40°C ~ 150°C minimum
• RoHS Status: ROHS3 Compliant (regulatory alignment)

Functional Compatibility Criteria:

• Function: Latch or Bipolar Switch capability
• Supply Voltage Overlap: Minimum 3V ~ 28V range or compatible subset
• Output Type: Open Drain or Digital output compatible with application circuit
• Current Ratings: Output current capacity ≥ 60mA for direct substitution

The AH3727Q-P-B qualifies as a substitute part based on shared manufacturer, Hall Effect technology, 3-SIP package, through-hole mounting, automotive-grade operation, and AEC-Q100 qualification. However, functional differences in sensing range, polarization, and output characteristics require circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

The AH3727Q-P-B is available as an active product from Diodes Incorporated, providing supply continuity for applications transitioning from the AH3767Q-P-B Last Time Buy status. Both components share identical supply current specifications (4mA maximum) and operating temperature range (-40°C ~ 150°C).

Key differences requiring circuit evaluation:

Supply Voltage: The AH3727Q-P-B operates within 2.2V ~ 20V, which does not cover the full 3V ~ 28V range of the AH3767Q-P-B. Applications requiring operation above 20V require alternative solutions.

Output Current: The AH3727Q-P-B maximum output current is 25mA, compared to 60mA for the AH3767Q-P-B. Load circuits drawing more than 25mA require redesign or alternative components.

Sensing Range: The AH3727Q-P-B provides bipolar switching capability (±6mT trip, ±0.5mT release) versus unipolar south pole operation (17mT trip, -17mT release) of the AH3767Q-P-B. Magnetic field orientation and magnitude requirements must be verified against application specifications.

Compliance: Both components meet ROHS3 compliance. The AH3767Q-P-B carries AEC-Q100 automotive qualification; the AH3727Q-P-B qualification status is not specified in available data.

Frequently Asked Questions (FAQ)

Q: Can the AH3727Q-P-B directly replace the AH3767Q-P-B in all applications?

A: Direct replacement is not universal. The AH3727Q-P-B differs in maximum output current (25mA vs. 60mA), supply voltage range (2.2V ~ 20V vs. 3V ~ 28V), sensing range (±6mT vs. 17mT), and polarization characteristics. Applications must be evaluated against these specific parameters.

Q: What is the primary limitation when substituting with AH3727Q-P-B?

A: The reduced maximum output current (25mA) is the most restrictive parameter. Applications requiring output currents between 25mA and 60mA cannot use this substitute without circuit modification.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both components use 3-SIP through-hole packaging, providing identical physical and electrical pin compatibility at the board level.

Q: Does the AH3727Q-P-B support the same temperature range?

A: Yes. Both components operate across -40°C ~ 150°C, meeting identical thermal specifications.

Q: What is the significance of the AH3767Q-P-B being Last Time Buy?

A: Last Time Buy status indicates production discontinuation. The AH3727Q-P-B, classified as Active, represents the recommended path for new designs and long-term supply assurance.

Q: How do the sensing ranges differ functionally?

A: The AH3767Q-P-B operates as a unipolar south pole latch (17mT trip threshold). The AH3727Q-P-B operates as a bipolar switch (±6mT trip threshold), responding to both north and south pole magnetic fields. Application magnetic field orientation determines compatibility.